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IIsi PSU: Internal ATX PSU & Custom Adapter PCB

I dug up the iFrog pics from my backburnered SuperIIsi(c) project, thinking to revisit it fairly soon. I'm a bit ahead of myself here because the subject came as a general IIcx Form Factor Power Connector thread recently:

Anyway here are the IIsi/internal ATX conversion project's development drawings:Original concept sketch, ISTR. At any rate it's the first of the series I posted and also the most complete . . go figure.

Sketch of actual IIsi components on inside of backplane and top of PCB . . .. . . dunno how much I distorted it for "clarity" . . .

This one needs to be rotated 180degrees to line up with the rest, but it shows the rough outline of the adapter PCB

Not shown: cutout indicated on front of PSU sheet metal mates with ductwork channeling heated airflow to fan mounted underneath FDD, exiting through cutout in bottom of case. The PSU hack's as stealthy as reasonably possible within a hulking, Rocket Powered SE/30 predator.___________________________________________________________

This is all electron plumbing to me, a schematic would make a lot more sense to a competent (sane) hacker, but this works for me. There's no indication of where any of the traces go at this point. Suffice it to say that what looks like stitchwork is a set of connected thru-holes facilitating cut and patch rework of pins and traces optimized for convenience.___________________________________________________________

Much of this particular hack would be directly applicable to the rest of the IIcx Connector PSU Series . . . maybe?